Oil-burner.



B. 0. KELLY.

OIL BURNER,

APPLICATION FILED DEC. 9.1916.

Patented Sept. 4, 1917'.

2 SHEET$SHEET1 B. 0. KELLY.

OIL BURNER.

I APPLICATION FILED DEC. 9.1916- l1,239,276. PatentedSept. 4, 1917 2 SHEETS-SHEE.T 2. m N

BURT o. KELLY, 0F SHELBY, MICHIGAN.

OIL-BURNER.

Specification of Letters Patent.

Patented Sept. 4:, 191 7.

Application filed. December 9, 1916. Serial No. 135,973.

T 0 all whom it may concern Be it known that I, BURT O. KELLY, a citizen of the United States, residing at Shelby, in the county of Oceana and State of Michigan, have invented certain new and useful Improvements in Oil-Burners; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an oil burner and has for one of its objects the provision of a device of this character, which shall use a minimum amount of fuel and give a maximum amount of heat.

Another object of this invention is to provide a heating tube and a fuel inlet ipe so located with respect to the burner, t at the fuel will be heated thoroughly prior to entering the burner, thus preventing any of the fuel from passing into the burner in an unvaporized state.

A further object of this invention is to provide a check valve located within the fuel inlet pipe to prevent the back pressure of vaporized fuel in the heating tube and burner from returning in the fuel supply pipe and reservoir, and which will readily permit the fuel to enter the heating pipe as the pressure of the vaporized fuel therein decreases.

A still further object of this'invention is the provision of an oil burner of the above stated character, which shall be simple, durable and efiicient, and which may be manufactured and sold at a comparatively low cost.

With these and other objects in view as will become more apparent as the description proceeds, the invention consists of certain novel features of construction, combination and arrangement of parts as will be hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawings, in which:

Figure 1 is a top plan view of an oil burner constructed in accordance with my invention,

Fig. 2 is a longitudinal sectional view taken on the line 22 of Fig. 1,

numeral 1 indicates an elongated base having circular openings 2 formed in the top thereof and adjacent each end and which are surrounded by circular walls 3forming air passages. The walls 3 are provided with oppositely disposed slots toreceive pipes a, which have their adjoining ends screw-threaded and connected by a T-coupling 5. The outer ends of the pipes 4. are closed by detachable caps 6 which maybe readily removed for-cleaning the pipes 4 of soot and other foreign matter. The pipes 4 are provided with outlet openings 7 and 8 within the air chambers to form burners, the outlet opening 7 being preferably located adjacent the wall of its respective air chamber as illustrated in Fig, 2 for the purpose of placing the outlet opening 7 as close as possible to a heating tube 9 so as to prevent the vaporized fuel from becoming cool before reaching the outlet opening 7.

A vertical pipe 10 is connected to the T- coupling 5 and to a T-coupling 11. An arm 12 is threaded to the T-coupling lland eX tends parallel with one of the pipes & and disposed directly thereover for supporting a deflector 13. Secured to the T-coupling 11 is the pipe 9 which cooperates with the pipe 10 in forming a fuel heating tube.

Connected to the free end of the pipe 9 is a T-coupling it having one of its openings closed by a screwthreaded plug 15'and having its other opening or port connected with a fuel supply pipe 16 which has its other end connected to a valve casing 17 in the formation of 'a T-coupling of which one of the ports is closed by a screwthreaded plug 18. Connected to the other port of the valve casing 17 is a fuel supply pipe 20 having its end beveled to form a valve seat for receiving a ball 21. The fuel pipe 20 may be connected to any desired source of fuel, (not shown).

Secured centrally to the base 1 is a substantially U-shaped bracket 22 by a bolt 23 and receives therein the T-coupling 5 for supporting the pipes a or burners. ositioned upon the base 1 between the air chambers or walls 3 is absorbent material, such as asbestos or the like, as illustrated at 2% which may be saturated with coal oil or the like fuel for heating the pipes 4 or burners and also the heating tube prior to igniting the burners so that the fuel within the heating tube and burners will become thoroughly vaporized and pass outwardly of the outlet opening 7. As the fuel becomes ignited at the outlet opening 7, the heat from the flame will be against the pipes 9, 10 and 16, thus thoroughly heating the fuel prior to entering the burners. As the fuel within the pipes 9, 10 and 16 will vaporize in a greater quantity by the heat of the burners than will be permitted to pass outwardly of the burners and to be consumed by the flame, there will be a back pressure caused within the pipe 16 and pipe 20 and to prevent the back pressurefrom entering the pipe 20 and the fuel supply source, the check valve 21 is provided which will immediately become seated as soon as the back pressure within the heating tube overcomes the pressure of the fuel within the supply pipe and reservoir or fuel source.

A wire 25 is bent in substantially U-shaped formation and has one of its ends pointed as illustrated at 26 to fit within the outlet opening 7 for rendering this burner inoperative when desired. The pointed end 26 is held within the opening 7 by a weight 27 upon the wire. The other end of the wire is bent to form a loop 29 for the purpose of receiving a suitable instrument for engaging and disengaging the pointed end 26 from the opening 7 when desired.

In operation, the fuel is turned on from the fuel supply tank or reservoir, (not shown), filling the pipes 16, 9, 10 and 4 and then the absorbent material 24 is saturated with flammable fuel and ignited, thus heating the pipes 4 or burners and as the burners or pipes 4 become thoroughly heated the fuel therein vaporizes and passes out through the outlet opening 7 and becomes ignited and theheat therefrom engages the pipes 9, 10 and 16, thoroughly vaporizing the fuel therein, thus the fuel is vaporized prior to entering the burners. It will be noted that the fuel before passing through the burners, substantially travels almost completely about one of the burners, thus the flame from the said burner thoroughly heats and vaporizes the fuel, reducing the amount of fuel used to operate an oil burner of this type.

A flame from the outlet opening 7 as the vaporized fuel becomes ignited is furnished with air upwardly through the circular walls 3 causing the flame to spread in a circular formation, thus permitting the flame to pass directly upwardly from the air chamhers and not to one side thereof or from the burners.

In reducing my invention to practice, I have found it more serviceable and practical to have all of the pipes used in constructing the device of the same size in diameter, so that the fuel will become thoroughly vaporized before entering the burners and which will give a maximum amount of heat at a minimum amount of fuel.

While I have shown and described the preferred embodiment of my invention, it will be understood that minor changes in construction, combination and arrangement of parts may be made without departing from the spirit and scope of the invention as claimed.

Having thus described my invention, what I claim is:

1. An oil burner comprising a base, a horizontal pipe carried by said base and having openings to form burners, a vertical pipe connected with the horizontal pipe intermediate its ends, a horizontal arm connected to the vertical pipe and overlying one of the burners for supporting a deflector, a horizontal pipe connected to the vertical pipe for cooperating with the vertical pipe in forming a fuel heating tube partially surrounding one of the burners, and means for supplying fuel to the fuel heating tube.

2. An oil burner comprising a fuel heating tube having openings therein, a T- shaped casing connected with the tube, a fuel supply pipe connected with one of the openings of the casing, a ball located within said casing for closing the fuel supply pipe when back pressure is caused within the tube, and a screwthreaded plug threaded in the other opening of the casing permitting the ball to be removed and the cleaning of the interior of the casing.

In testimony whereof I afliX my signature in presence of two witnesses.

BURT O. KELLY.

Witnesses:

M. I. LEWIS, BENNETT S. JONES.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, 10.0. 

